Observers and Measurements in Noncommutative Spacetimes

TL;DR

This paper proposes a Copenhagen-like interpretation for noncommutative spacetime, enabling predictions of experimental outcomes such as energy-dependent photon speeds, with potential detectability by upcoming telescopes.

Contribution

It introduces a model linking spacetime noncommutativity to observable effects like photon speed variation, providing a framework for experimental tests.

Findings

Predicts energy-dependent photon speeds of order E/E_Planck

Suggests detectability of effects with GLAST telescope

Provides a model connecting noncommutative geometry to experiments

Abstract

We propose a "Copenhagen interpretation" for spacetime noncommutativity. The goal is to be able to predict results of simple experiments involving signal propagation directly from commutation relations. A model predicting an energy dependence of the speed of photons of the order E/E_Planck is discussed in detail. Such effects can be detectable by the GLAST telescope, to be launched in 2006.